－
140
－
20.
Troubleshooting
Troubleshooting methods are shown by symptoms. Read corresponding symptom items.
1. Not working
2. Abnormal measurement
Check
Causes and remedial measures
1) Check if power is supplied to power
terminals
Turn ON the external source power supply.
2) Check if the power supply is as specified
Feed power supply as specified (100 to 240
VAC 50/60Hz).
3) Check if connections to power terminals are
correct.
Connect the cable to power terminals (L, N)
correctly.
4) POWER switch is not turned ON.
Turn ON the POWER switch.
5) Try turning OFF and ON the external source power supply.
Symptoms
Causes and remedial measures
1) Measured values unstable
●
Check measuring terminals for looseness.
●
Check if the input signal is unstable.
2) An error occurs
●
Check if the input signal is correct.
●
Check if extension wire is connected to input terminals.
(Thermocouple input only)
●
Check input value, if error found, perform calibration with
reference to Adjustment (par. 16).
3) Influences by ambient
temperature
(Thermocouple input only)
●
Check if the terminal cover is mounted
If problem cannot be solved by performing the troubleshooting, contact your sales agent
or CHINO with information of
1. Model, 2. Serial No., 3. Description of problem, 4. Other notes.
When repair of the instrument is needed, understand the following before having it
repaired.
The data of internal memory may be deleted during repairing for unexpected trouble.
Backup the data to the CF card before having the instrument repaired. We are not
responsible for the lost or damaged data.
When problem cannot be solved
20
